// support.js
class Container {
    constructor(value){
        this._value = value
    }
    static of(value){
        return new Container(value)
    }
    map(fn){
        return Container.of(fn(this._value))
    }
}
class Maybe {
    constructor(value){
        this._value = value
    }
    static of(value){
        return new Maybe(value)
    }
    isNothing(){
        return this._value === null || this._value === undefined
    }
    map(fn){
        return this.isNothing() ? Maybe.of(null) : Maybe.of(fn(this._value))
    }
}

module.exports = { Maybe, Container }
